10 Works

Data from: QTL analysis of soft scald in two apple populations

Kendra A. McClure, Kyle M. Gardner, Peter M. A. Toivonen, Cheryl R. Hampson, Jun Song, Charles F. Forney, John DeLong, Istvan Rajcan & Sean Myles
The apple (Malus×domestica Borkh.) is one of the world’s most widely grown and valuable fruit crops. With demand for apples year round, storability has emerged as an important consideration for apple breeding programs. Soft scald is a cold storage-related disorder that results in sunken, darkened tissue on the fruit surface. Apple breeders are keen to generate new cultivars that do not suffer from soft scald and can thus be marketed year round. Traditional breeding approaches...

Data from: Oceanic distribution, behaviour, and a winter aggregation area of adult Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus, in the Bay of Fundy, Canada

Andrew Douglas Taylor, Kyoko Ohashi, Jinyu Sheng & Matthew Kenneth Litvak
Seasonal distribution of adult Atlantic sturgeon was examined using pop-up satellite archival tags (PSATs) and ultrasonic transmitters deployed in the Saint John River, New Brunswick, Canada. Seven MK10 PSATs programmed for release in June 2012 and seven MiniPAT PSATs programmed for release in February and April 2013 were deployed in August 2011 and 2012, respectively. Eleven of 14 PSATs surfaced and transmitted depth and temperature data archived for the duration of their deployment (121–302 days)....

Data from: Identifying patterns of dispersal, connectivity, and selection in the sea scallop, Placopecten magellanicus, using RAD-seq derived SNPs

Mallory Van Wyngaarden, Paul V.R. Snelgrove, Claudio DiBacco, Lorraine C. Hamilton, Naiara Rodríguez-Ezpeleta, Nicholas W. Jeffery, Ryan R. Stanley, Ian R. Bradbury, Ryan R. E. Stanley & Paul V. R. Snelgrove
Understanding patterns of dispersal and connectivity among marine populations can directly inform fisheries conservation and management. Advances in high-throughput sequencing offer new opportunities for estimating marine connectivity. We used Restriction-site Associated DNA sequencing to examine dispersal and realized connectivity in the sea scallop Placopecten magellanicus, an economically important marine bivalve. Based on 245 individuals sampled range-wide at 12 locations from Newfoundland to the Mid-Atlantic Bight we identified and genotyped 7163 Single Nucleotide Polymorphisms; 112 (1.6%)...

Data from: Heme pathway evolution in kinetoplastid protists

Ugo Pierre Cenci, Daniel Moog, Bruce A. Curtis, Goro Tanifuji, Laura Eme, Julius Lukeš & John M. Archibald
Background: Kinetoplastea is a diverse protist lineage composed of several of the most successful parasites on Earth, organisms whose metabolisms have coevolved with those of the organisms they infect. Parasitic kinetoplastids have emerged from free-living, non-pathogenic ancestors on multiple occasions during the evolutionary history of the group. Interestingly, in both parasitic and free-living kinetoplastids, the heme pathway—a core metabolic pathway in a wide range of organisms—is incomplete or entirely absent. Indeed, Kinetoplastea investigated thus far...

Data from: Socially segregated, sympatric sperm whale clans in the Atlantic Ocean

Shane Gero, Anne Bøttcher, Hal Whitehead & Peter Teglberg Madsen
Sperm whales (Physeter macrocephalus) are unusual in that there is good evidence for sympatric populations with distinct culturally determined behaviour, including potential acoustic markers of the population division. In the Pacific, socially segregated, vocal clans with distinct dialects coexist; by contrast, geographical variation in vocal repertoire in the Atlantic has been attributed to drift. We examine networks of acoustic repertoire similarity and social interactions for 11 social units in the Eastern Caribbean. We find the...

Data from: Effective number of breeders, effective population size and their relationship with census size in an iteroparous species, Salvelinus fontinalis

Daniel E. Ruzzante, Gregory R. McCracken, Samantha Parmelee, Kristen Hill, Amelia Corrigan, John MacMillan & Sandra J. Walde
Effective number of breeders, Nb, effective population size, Ne, iteroparity, small population size, brook trout, age at maturation Abstract: The relationship between the effective number of breeders (Nb) and the generational effective size (Ne) has rarely been examined empirically in species with overlapping generations and iteroparity. Based on a suite of 11 microsatellite markers we examine the relationship between Nb, Ne, and census population size (Nc) in 14 brook trout (Salvelinus fontanels) populations inhabiting 12...

Data from: Cultural turnover among Galápagos sperm whales

Mauricio Cantor, Hal Whitehead, Shane Gero & Luke Rendell
While populations may wax and wane, it is rare for an entire population to be replaced by a completely different set of individuals. We document the large-scale relocation of cultural groups of sperm whale off the Galápagos Islands, in which two sympatric vocal clans were entirely replaced by two different ones. Between 1985 and 1999, whales from two clans (called Regular and Plus-One) defined by cultural dialects in coda vocalizations were repeatedly photo-identified off Galápagos....

Data from: A portrait of a sucker using landscape genetics: how colonization and life history undermine the idealized dendritic metapopulation

Sarah J. Salisbury, Gregory R. McCracken, Donald Keefe, Robert Perry & Daniel E. Ruzzante
Dendritic metapopulations have been attributed unique properties by in silico studies, including an elevated genetic diversity relative to a panmictic population of equal total size. These predictions have not been rigorously tested in nature, nor has there been full consideration of the interacting effects among contemporary landscape features, colonization history and life history traits of the target species. We tested for the effects of dendritic structure as well as the relative importance of life history,...

Data from: Subfunctionalization of peroxisome proliferator response elements accounts for retention of duplicated fabp1 genes in zebrafish

Robert B Laprairie, Eileen M Denovan-Wright & Jonathan M Wright
Background: In the duplication-degeneration-complementation (DDC) model, a duplicated gene has three possible fates: it may lose functionality through the accumulation of mutations (non-functionalization), acquire a new function (neo-functionalization), or each duplicate gene may retain a subset of functions of the ancestral gene (sub-functionalization). The role that promoter evolution plays in retention of duplicated genes in eukaryotic genomes is not well understood. Fatty acid-binding proteins (Fabp) belong to a multigene family that are highly conserved in...

Data from: Adaptive phenotypic response to climate enabled by epigenetics in a K-strategy species, the fish Leucoraja ocellata (Rajidae)

Jackie Lighten, Danny Incarnato, Ben J. Ward, Cock Van Oosterhout, Ian Bradbury, Mark Hanson & Paul Bentzen
The relative importance of genetic versus epigenetic changes in adaptive evolution is a hotly debated topic, with studies showing that some species appear to be able to adapt rapidly without significant genetic change. Epigenetic mechanisms may be particularly important for the evolutionary potential of species with long maturation times and low reproductive potential (‘K-strategists’), particularly when faced with rapidly changing environmental conditions. Here we study the transcriptome of two populations of the winter skate (Leucoraja...

Registration Year

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Affiliations

  • Dalhousie University
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  • Aarhus University
    2
  • Fisheries and Oceans Canada
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  • Memorial University of Newfoundland
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  • Department of Environment and Conservation
    1
  • Earlham Institute
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  • University of Guelph
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  • University of East Anglia
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  • University of Tsukuba
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  • University of St Andrews
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